Pith Number

pith:QRC5U4LH

pith:2011:QRC5U4LH6MRPLODPSYWRM5JNHM

not attested not anchored not stored refs pending

"Bridging the Gap" through Australian Cultural Astronomy

Duane W. Hamacher, Ray P. Norris

arxiv:1103.1928 v1 · 2011-03-10 · physics.hist-ph · physics.soc-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QRC5U4LH6MRPLODPSYWRM5JNHM}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:27:03.370514Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8445da7167f322f5b86f962d16752d3b0be02ab7293a4056f29109d889252117

Aliases

arxiv: 1103.1928 · arxiv_version: 1103.1928v1 · doi: 10.48550/arxiv.1103.1928 · pith_short_12: QRC5U4LH6MRP · pith_short_16: QRC5U4LH6MRPLODP · pith_short_8: QRC5U4LH

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QRC5U4LH6MRPLODPSYWRM5JNHM \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 8445da7167f322f5b86f962d16752d3b0be02ab7293a4056f29109d889252117

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11ebb42d7e88f3f744d48069b8a883c06841c3b7e37103a6a33e1ad915662679",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2011-03-10T02:34:23Z",
    "title_canon_sha256": "1b687ec24c7abc6a6f152306371289693b6a306d1aa70c9b500d343e2b6a5d60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.1928",
    "kind": "arxiv",
    "version": 1
  }
}